Did you try to delete the driver folder? That would be the easiest option. If you encouter errors in Explorer try "rmdir /s G:\driver" in cmd.exe

You can also try "del G:\driver\usb\desktop.ini" as desktop.ini is used for folder customizing and could be used to make the folder act like the Recycle Bin from within explorer. However cmd.exe would be unaffected so you could still reach the folder that way.

Or, just use the movefile tool by Sysinternals to delete G:\driver on boot, and then reboot and it will be gone (as long as Windows mounts it as the same drive letter. If it doesn't, use Drive Management in My Computer > right click > Manage to manually assign it a different drive letter and it should get the same letter next boot).